v2.2.2

Changes

• Textual log view: Normalization runs in a background run_worker with an exclusive group so follow-mode refreshes no longer invalidate every normalize result (message-pump await + monotonic id race).
• Visibility: Normalize subprocess nonzero exit, timeout, and missing script report via app notifications; communicate timeout scales with log size (about 5–60s).
• normalize_logs.py: Only treat JSON objects as structured logs after json.loads (scalar/array JSON no longer crashes with TypeError). Safer stdout handling for broken pipe and encoding issues; per-line fallback on formatter errors.
• Tests: tests/test_textual_log_normalize.py covers subprocess behavior, stale-id guard, and worker scheduling.